Ballpoint pen



FIG. 1 is a perspective view of a ballpoint pen showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a rear elevational view thereof; and

FIG. 7 is a bottom plan view thereof.

FIG. 8 is a perspective view thereof in a state where a clip portion of the ballpoint pen is in the open position and a ballpoint pen refill is extended from the body of the ballpoint pen;

FIG. 9 is a front elevational view on a slightly smaller scale thereof in the state where a clip portion of the ballpoint pen is in the open position and a ballpoint pen refill is extended from the body of the ball point pen;

FIG. 10 is a top plan view thereof; and,

FIG. 11 is a bottom plan view thereof.

The even broken line showings in the figures are for illustrative purpose only and form no part of the claimed design.

The dot-dash broken lines which define the bounds of the claimed design form no part thereof. 

CLAIM The ornamental design for a ballpoint pen, as shown and described. 